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Osprey Atmos AG 50 vs Osprey Aura AG 65

Weight and specs compared for 2026 — and which one to choose.

Osprey Atmos AG 50 is the lighter option — 110 g lighter than the Osprey Aura AG 65 (5% less weight). If grams matter to you, that is the one to beat.
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Spec Osprey Atmos AG 50 Osprey Aura AG 65
Weight 1,900 g · 1.900 kg · 4.19 lb 2,010 g · 2.010 kg · 4.43 lb
Brand Osprey Osprey
Category Backpack Backpack
Osprey Atmos AG 50
1,900 g

Versatile 50L Anti-Gravity pack for multi-day adventures.

See it in your base weight → Full details →
Osprey Aura AG 65
2,010 g

Women's 65L Anti-Gravity pack with FitPod adjustment.

See it in your base weight → Full details →

Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.

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Osprey Atmos AG 50 vs Osprey Aura AG 65: which should you buy?

If saving weight is your priority, the Osprey Atmos AG 50 wins — at 1,900 g it is 110 g (5%) lighter than the Osprey Aura AG 65 (2,010 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest backpack page, or browse the full gear weight database.

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